. >> reporter: a defense official tells cnn there's a distinct possibility the defense department investigation into allen is connected to the petraeus fbi investigation. fbi agents removed property from broadwell's north carolina home on monday. >> she's cooperating which is a good idea. the question are these classified documents? >> reporter: the answer may show the national security was threatened by personal choices. in washington, emily schmidt, 9news now. >> now one u.s. official is telling emily schmidt there doesn't appear to be anything criminal in the e-mails between general allen and jill kelley. that person says kelley also did a lot of work with programs like wounded warriors which could account for some of the volume of e-mails and be real business. >>> update now on the breaking news from the top of our 5:00 hour. andrea mccarren is live in waldorf where the arrest of a couple in d.c. may have cracked a murder case. andrea? >> reporter: it did derek. in fact the metropolitan police department provided information here that helped crack a case in waldorf that just stunned the com